Jump to main content.

8-Hour and Previous 1-Hour Ozone State/County Detail Report

Listed by State, County then Pollutant
As of August 30, 2011

Ozone Classification Information      |      View Notes

n = area has whole or part county(ies) in a previous 1-hr Ozone nonattainment area (as of June 15, 2005) no longer subject to the 1-hour standard
m = area has whole or part county(ies) in a previous 1-hr Ozone maintenance area (as of June 15, 2005) no longer subject to the 1-hour standard
* = area has whole or part county(ies) in a previous 1-hr Ozone nonattainment or maintenance area (as of June 15, 2005) no longer subject to the 1-hour standard

State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
ALABAMA
Jefferson Co
8-Hr Ozone [m]   Birmingham, AL - Former Subpart 1
1-Hr Ozone [m]   Birmingham, AL - Marginal
Shelby Co
8-Hr Ozone [m]   Birmingham, AL - Former Subpart 1
1-Hr Ozone [m]   Birmingham, AL - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
ARIZONA
Maricopa Co
8-Hr Ozone * Phoenix-Mesa, AZ - Former Subpart 1
1-Hr Ozone [m] * Phoenix, AZ - Serious
Pinal Co
8-Hr Ozone * Phoenix-Mesa, AZ - Former Subpart 1
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
ARKANSAS
Crittenden Co
8-Hr Ozone [m]   Memphis, TN-AR - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
CALIFORNIA
Alameda Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
Amador Co
8-Hr Ozone   Amador and Calaveras Cos (Central Mtn), CA - Former Subpart 1
Butte Co
8-Hr Ozone   Chico, CA - Former Subpart 1
1-Hr Ozone [n]   Chico, CA - Section 185A
Calaveras Co
8-Hr Ozone   Amador and Calaveras Cos (Central Mtn), CA - Former Subpart 1
Contra Costa Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
El Dorado Co
8-Hr Ozone * Sacramento Metro, CA - Severe 15
1-Hr Ozone [n] * Sacramento Metro, CA - Severe-15
Fresno Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
Imperial Co
8-Hr Ozone   Imperial Co, CA - Moderate
1-Hr Ozone [n]   Imperial Co, CA - Section 185A
Kern Co
8-Hr Ozone * Kern Co (Eastern Kern), CA - Former Subpart 1
8-Hr Ozone * San Joaquin Valley, CA - Extreme
1-Hr Ozone [m] * East Kern Co, CA - Serious
1-Hr Ozone [n] * San Joaquin Valley, CA - Extreme
Kings Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
Los Angeles Co
8-Hr Ozone * Los Angeles South Coast Air Basin, CA - Extreme
8-Hr Ozone * Los Angeles-San Bernardino Cos(W Mojave),CA - Moderate
1-Hr Ozone [n] * Los Angeles South Coast Air Basin, CA - Extreme
1-Hr Ozone [n] * Southeast Desert Modified AQMA, CA - Severe-17
Madera Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
Marin Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
Mariposa Co
8-Hr Ozone   Mariposa and Tuolumne Cos (Southern Mtn),CA - Former Subpart 1
Merced Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
Monterey Co
1-Hr Ozone [m]   Monterey Bay, CA - Moderate
Napa Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
Nevada Co
8-Hr Ozone * Nevada Co. (Western Part), CA - Former Subpart 1
Orange Co
8-Hr Ozone   Los Angeles South Coast Air Basin, CA - Extreme
1-Hr Ozone [n]   Los Angeles South Coast Air Basin, CA - Extreme
Placer Co
8-Hr Ozone * Sacramento Metro, CA - Severe 15
1-Hr Ozone [n] * Sacramento Metro, CA - Severe-15
Riverside Co
8-Hr Ozone * Los Angeles South Coast Air Basin, CA - Extreme
8-Hr Ozone * Riverside Co, (Coachella Valley), CA - Severe 15
1-Hr Ozone [n] * Los Angeles South Coast Air Basin, CA - Extreme
1-Hr Ozone [n] * Southeast Desert Modified AQMA, CA - Severe-17
Sacramento Co
8-Hr Ozone   Sacramento Metro, CA - Severe 15
1-Hr Ozone [n]   Sacramento Metro, CA - Severe-15
San Benito Co
1-Hr Ozone [m]   Monterey Bay, CA - Moderate
San Bernardino Co
8-Hr Ozone * Los Angeles South Coast Air Basin, CA - Extreme
8-Hr Ozone * Los Angeles-San Bernardino Cos(W Mojave),CA - Moderate
1-Hr Ozone [n] * Los Angeles South Coast Air Basin, CA - Extreme
1-Hr Ozone [n] * Southeast Desert Modified AQMA, CA - Severe-17
San Diego Co
8-Hr Ozone * San Diego, CA - Former Subpart 1
1-Hr Ozone [m]   San Diego, CA - Serious
San Francisco Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
San Joaquin Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
San Mateo Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
Santa Barbara Co
1-Hr Ozone [m]   Santa Barbara-Santa Maria-Lompoc, CA - Serious
Santa Clara Co
8-Hr Ozone   San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n]   San Francisco Bay Area, CA - Other
Santa Cruz Co
1-Hr Ozone [m]   Monterey Bay, CA - Moderate
Solano Co
8-Hr Ozone * Sacramento Metro, CA - Severe 15
8-Hr Ozone * San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n] * Sacramento Metro, CA - Severe-15
1-Hr Ozone [n] * San Francisco Bay Area, CA - Other
Sonoma Co
8-Hr Ozone * San Francisco Bay Area, CA - Marginal
1-Hr Ozone [n] * San Francisco Bay Area, CA - Other
Stanislaus Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
Sutter Co
8-Hr Ozone * Sacramento Metro, CA - Severe 15
8-Hr Ozone * Sutter Co (Sutter Buttes), CA - Former Subpart 1
1-Hr Ozone [n] * Sacramento Metro, CA - Severe-15
1-Hr Ozone [n] * Yuba City, CA - Section 185A
Tulare Co
8-Hr Ozone   San Joaquin Valley, CA - Extreme
1-Hr Ozone [n]   San Joaquin Valley, CA - Extreme
Tuolumne Co
8-Hr Ozone   Mariposa and Tuolumne Cos (Southern Mtn),CA - Former Subpart 1
Ventura Co
8-Hr Ozone * Ventura Co, CA - Serious
1-Hr Ozone [n]   Ventura Co, CA - Severe-15*
Yolo Co
8-Hr Ozone   Sacramento Metro, CA - Severe 15
1-Hr Ozone [n]   Sacramento Metro, CA - Severe-15
Yuba Co
1-Hr Ozone [n]   Yuba City, CA - Section 185A
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
COLORADO
Adams Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m] * Denver-Boulder, CO - Section 185A
Arapahoe Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m] * Denver-Boulder, CO - Section 185A
Boulder Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m] * Denver-Boulder, CO - Section 185A
Broomfield Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m]   Denver-Boulder, CO - Section 185A
Denver Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m]   Denver-Boulder, CO - Section 185A
Douglas Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m]   Denver-Boulder, CO - Section 185A
Jefferson Co
8-Hr Ozone   Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
1-Hr Ozone [m]   Denver-Boulder, CO - Section 185A
Larimer Co
8-Hr Ozone * Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
Weld Co
8-Hr Ozone * Denver-Boulder-Greeley-Ft Collins-Love., CO - Former Subpart 1
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
CONNECTICUT
Fairfield Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n] * Greater Connecticut, CT - Serious
1-Hr Ozone [n] * New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Hartford Co
8-Hr Ozone   Greater Connecticut, CT - Moderate
1-Hr Ozone [n]   Greater Connecticut, CT - Serious
Litchfield Co
8-Hr Ozone   Greater Connecticut, CT - Moderate
1-Hr Ozone [n] * Greater Connecticut, CT - Serious
1-Hr Ozone [n] * New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Middlesex Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   Greater Connecticut, CT - Serious
New Haven Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   Greater Connecticut, CT - Serious
New London Co
8-Hr Ozone   Greater Connecticut, CT - Moderate
1-Hr Ozone [n]   Greater Connecticut, CT - Serious
Tolland Co
8-Hr Ozone   Greater Connecticut, CT - Moderate
1-Hr Ozone [n]   Greater Connecticut, CT - Serious
Windham Co
8-Hr Ozone   Greater Connecticut, CT - Moderate
1-Hr Ozone [n]   Greater Connecticut, CT - Serious
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
DELAWARE
Kent Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
New Castle Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Sussex Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Sussex Co, DE - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
DISTRICT OF COLUMBIA
Entire District
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
FLORIDA
Broward Co
1-Hr Ozone [m]   Miami-Fort Lauderdale-W. Palm Beach, FL - Moderate
Duval Co
1-Hr Ozone [m]   Jacksonville, FL - Section 185A
Hillsborough Co
1-Hr Ozone [m]   Tampa-St. Petersburg-Clearwater, FL - Marginal
Miami-Dade Co
1-Hr Ozone [m]   Miami-Fort Lauderdale-W. Palm Beach, FL - Moderate
Palm Beach Co
1-Hr Ozone [m]   Miami-Fort Lauderdale-W. Palm Beach, FL - Moderate
Pinellas Co
1-Hr Ozone [m]   Tampa-St. Petersburg-Clearwater, FL - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
GEORGIA
Barrow Co
8-Hr Ozone   Atlanta, GA - Moderate
Bartow Co
8-Hr Ozone   Atlanta, GA - Moderate
Bibb Co
8-Hr Ozone [m]   Macon, GA - Former Subpart 1
Carroll Co
8-Hr Ozone   Atlanta, GA - Moderate
Cherokee Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Clayton Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Cobb Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Coweta Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
De Kalb Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Douglas Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Fayette Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Forsyth Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Fulton Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Gwinnett Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Hall Co
8-Hr Ozone   Atlanta, GA - Moderate
Henry Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Monroe Co
8-Hr Ozone [m] * Macon, GA - Former Subpart 1
Murray Co
8-Hr Ozone [m] * Murray Co (Chattahoochee Nat Forest), GA - Former Subpart 1
Newton Co
8-Hr Ozone   Atlanta, GA - Moderate
Paulding Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Rockdale Co
8-Hr Ozone   Atlanta, GA - Moderate
1-Hr Ozone [m]   Atlanta, GA - Severe-15
Spalding Co
8-Hr Ozone   Atlanta, GA - Moderate
Walton Co
8-Hr Ozone   Atlanta, GA - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
ILLINOIS
Cook Co
8-Hr Ozone   Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Du Page Co
8-Hr Ozone   Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Grundy Co
8-Hr Ozone * Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n] * Chicago-Gary-Lake County, IL-IN - Severe-17
Jersey Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   Jersey Co, IL - Marginal
Kane Co
8-Hr Ozone   Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Kendall Co
8-Hr Ozone * Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n] * Chicago-Gary-Lake County, IL-IN - Severe-17
Lake Co
8-Hr Ozone   Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Madison Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
Mc Henry Co
8-Hr Ozone   Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Monroe Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
St Clair Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
Will Co
8-Hr Ozone   Chicago-Gary-Lake County, IL-IN (Illinois portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
INDIANA
Allen Co
8-Hr Ozone [m]   Fort Wayne, IN - Former Subpart 1
Boone Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
Clark Co
8-Hr Ozone [m]   Louisville, KY-IN - Former Subpart 1
1-Hr Ozone [m]   Louisville, KY-IN - Moderate
Dearborn Co
8-Hr Ozone [m] * Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
Delaware Co
8-Hr Ozone [m]   Muncie, IN - Former Subpart 1
Elkhart Co
8-Hr Ozone [m]   South Bend-Elkhart, IN - Former Subpart 1
1-Hr Ozone [m]   South Bend-Elkhart, IN - Marginal
Floyd Co
8-Hr Ozone [m]   Louisville, KY-IN - Former Subpart 1
1-Hr Ozone [m]   Louisville, KY-IN - Moderate
Greene Co
8-Hr Ozone [m]   Greene Co, IN - Former Subpart 1
Hamilton Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
Hancock Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
Hendricks Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
Jackson Co
8-Hr Ozone [m]   Jackson Co, IN - Former Subpart 1
Johnson Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
La Porte Co
8-Hr Ozone [m]   La Porte, IN - Marginal
Lake Co
8-Hr Ozone [m]   Chicago-Gary-Lake County, IL-IN (Indiana portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Madison Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
Marion Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
1-Hr Ozone [m]   Indianapolis, IN - Marginal
Morgan Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
Porter Co
8-Hr Ozone [m]   Chicago-Gary-Lake County, IL-IN (Indiana portion) - Moderate
1-Hr Ozone [n]   Chicago-Gary-Lake County, IL-IN - Severe-17
Shelby Co
8-Hr Ozone [m]   Indianapolis, IN - Former Subpart 1
St Joseph Co
8-Hr Ozone [m]   South Bend-Elkhart, IN - Former Subpart 1
1-Hr Ozone [m]   South Bend-Elkhart, IN - Marginal
Vanderburgh Co
8-Hr Ozone [m]   Evansville, IN - Former Subpart 1
1-Hr Ozone [m]   Evansville, IN - Marginal
Vigo Co
8-Hr Ozone [m]   Terre Haute, IN - Former Subpart 1
Warrick Co
8-Hr Ozone [m]   Evansville, IN - Former Subpart 1
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
KANSAS
Johnson Co
1-Hr Ozone [m]   Kansas City, MO-KS - Other
Wyandotte Co
1-Hr Ozone [m]   Kansas City, MO-KS - Other
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
KENTUCKY
Boone Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Boyd Co
8-Hr Ozone [m]   Huntington-Ashland, WV-KY - Former Subpart 1
1-Hr Ozone [m]   Huntington-Ashland, WV-KY - Moderate*
Bullitt Co
8-Hr Ozone [m]   Louisville, KY-IN - Former Subpart 1
1-Hr Ozone [m] * Louisville, KY-IN - Moderate
Campbell Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Christian Co
8-Hr Ozone [m]   Clarksville-Hopkinsville, TN-KY - Former Subpart 1
Daviess Co
1-Hr Ozone [m]   Owensboro, KY - Marginal
Edmonson Co
1-Hr Ozone [m]   Edmonson Co, KY - Marginal RT
Fayette Co
1-Hr Ozone [m]   Lexington-Fayette, KY - Marginal
Greenup Co
1-Hr Ozone [m] * Huntington-Ashland, WV-KY - Moderate*
Hancock Co
1-Hr Ozone [m] * Owensboro, KY - Marginal
Jefferson Co
8-Hr Ozone [m]   Louisville, KY-IN - Former Subpart 1
1-Hr Ozone [m]   Louisville, KY-IN - Moderate
Kenton Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Livingston Co
1-Hr Ozone [m] * Paducah, KY - Marginal
Marshall Co
1-Hr Ozone [m]   Paducah, KY - Marginal
Oldham Co
8-Hr Ozone [m]   Louisville, KY-IN - Former Subpart 1
1-Hr Ozone [m] * Louisville, KY-IN - Moderate
Scott Co
1-Hr Ozone [m]   Lexington-Fayette, KY - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
LOUISIANA
Ascension Par
8-Hr Ozone   Baton Rouge, LA - Moderate
1-Hr Ozone [n]   Baton Rouge, LA - Severe-15
Beauregard Par
1-Hr Ozone [m]   Beauregard Par, LA - Incomplete Data
Calcasieu Par
1-Hr Ozone [m]   Lake Charles, LA - Marginal
East Baton Rouge Par
8-Hr Ozone   Baton Rouge, LA - Moderate
1-Hr Ozone [n]   Baton Rouge, LA - Severe-15
Grant Par
1-Hr Ozone [m]   Grant Par, LA - Incomplete Data
Iberville Par
8-Hr Ozone   Baton Rouge, LA - Moderate
1-Hr Ozone [n]   Baton Rouge, LA - Severe-15
Jefferson Par
1-Hr Ozone [m]   New Orleans, LA - Section 185A
Lafayette Par
1-Hr Ozone [m]   Lafayette, LA - Section 185A
Lafourche Par
1-Hr Ozone [m]   LaFourche Par, LA - Incomplete Data
Livingston Par
8-Hr Ozone   Baton Rouge, LA - Moderate
1-Hr Ozone [n]   Baton Rouge, LA - Severe-15
Orleans Par
1-Hr Ozone [m]   New Orleans, LA - Section 185A
Pointe Coupee Par
1-Hr Ozone [m]   Pointe Coupee Parish, LA - Marginal
St Bernard Par
1-Hr Ozone [m]   New Orleans, LA - Section 185A
St Charles Par
1-Hr Ozone [m]   New Orleans, LA - Section 185A
St James Par
1-Hr Ozone [m]   St James Par, LA - Incomplete Data
St Mary Par
1-Hr Ozone [m]   St Mary Par, LA - Incomplete Data
West Baton Rouge Par
8-Hr Ozone   Baton Rouge, LA - Moderate
1-Hr Ozone [n]   Baton Rouge, LA - Severe-15
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
MAINE
Androscoggin Co
8-Hr Ozone [m] * Portland, ME - Marginal
1-Hr Ozone [n]   Lewiston-Auburn, ME - Moderate*
Cumberland Co
8-Hr Ozone [m] * Portland, ME - Marginal
1-Hr Ozone [n]   Portland, ME - Moderate
Hancock Co
8-Hr Ozone [m] * Hancock, Knox, Lincoln & Waldo Cos, ME - Former Subpart 1
1-Hr Ozone [m]   Hancock & Waldo Cos, ME - Marginal
Kennebec Co
1-Hr Ozone [n]   Lewiston-Auburn, ME - Moderate*
Knox Co
8-Hr Ozone [m] * Hancock, Knox, Lincoln & Waldo Cos, ME - Former Subpart 1
1-Hr Ozone [n]   Knox & Lincoln Co.s, ME - Moderate*
Lincoln Co
8-Hr Ozone [m] * Hancock, Knox, Lincoln & Waldo Cos, ME - Former Subpart 1
1-Hr Ozone [n]   Knox & Lincoln Co.s, ME - Moderate*
Sagadahoc Co
8-Hr Ozone [m]   Portland, ME - Marginal
1-Hr Ozone [n]   Portland, ME - Moderate
Waldo Co
8-Hr Ozone [m] * Hancock, Knox, Lincoln & Waldo Cos, ME - Former Subpart 1
1-Hr Ozone [m]   Hancock & Waldo Cos, ME - Marginal
York Co
8-Hr Ozone [m] * Portland, ME - Marginal
1-Hr Ozone [n]   Portland, ME - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
MARYLAND
Anne Arundel Co
8-Hr Ozone   Baltimore, MD - Moderate
1-Hr Ozone [n]   Baltimore, MD - Severe-15
Baltimore (City)
8-Hr Ozone   Baltimore, MD - Moderate
1-Hr Ozone [n]   Baltimore, MD - Severe-15
Baltimore Co
8-Hr Ozone   Baltimore, MD - Moderate
1-Hr Ozone [n]   Baltimore, MD - Severe-15
Calvert Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Carroll Co
8-Hr Ozone   Baltimore, MD - Moderate
1-Hr Ozone [n]   Baltimore, MD - Severe-15
Cecil Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Charles Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Frederick Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Harford Co
8-Hr Ozone   Baltimore, MD - Moderate
1-Hr Ozone [n]   Baltimore, MD - Severe-15
Howard Co
8-Hr Ozone   Baltimore, MD - Moderate
1-Hr Ozone [n]   Baltimore, MD - Severe-15
Kent Co
8-Hr Ozone [m]   Kent and Queen Anne's Cos, MD - Marginal
1-Hr Ozone [m]   Kent & Queen Anne's Co.s, MD - Marginal
Montgomery Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Prince George's Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Queen Annes Co
8-Hr Ozone [m]   Kent and Queen Anne's Cos, MD - Marginal
1-Hr Ozone [m]   Kent & Queen Anne's Co.s, MD - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
MASSACHUSETTS
Barnstable Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Berkshire Co
8-Hr Ozone   Springfield (Western MA), MA - Moderate
1-Hr Ozone [n]   Springfield (Western MA), MA - Serious
Bristol Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Dukes Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Essex Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Franklin Co
8-Hr Ozone   Springfield (Western MA), MA - Moderate
1-Hr Ozone [n]   Springfield (Western MA), MA - Serious
Hampden Co
8-Hr Ozone   Springfield (Western MA), MA - Moderate
1-Hr Ozone [n]   Springfield (Western MA), MA - Serious
Hampshire Co
8-Hr Ozone   Springfield (Western MA), MA - Moderate
1-Hr Ozone [n]   Springfield (Western MA), MA - Serious
Middlesex Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Nantucket Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Norfolk Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Plymouth Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Suffolk Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
Worcester Co
8-Hr Ozone   Boston-Lawrence-Worcester (E. MA), MA - Moderate
1-Hr Ozone [n]   Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
MICHIGAN
Allegan Co
8-Hr Ozone [m]   Allegan Co, MI - Former Subpart 1
1-Hr Ozone [m]   Allegan Co, MI - Incomplete Data
Bay Co
1-Hr Ozone [m]   Saginaw-Bay City-Midland, MI - Incomplete Data
Benzie Co
8-Hr Ozone [m]   Benzie Co, MI - Former Subpart 1
Berrien Co
8-Hr Ozone [m]   Benton Harbor, MI - Former Subpart 1
Calhoun Co
8-Hr Ozone [m]   Kalamazoo-Battle Creek, MI - Former Subpart 1
Cass Co
8-Hr Ozone [m]   Cass Co, MI - Marginal
Clinton Co
8-Hr Ozone [m]   Lansing-East Lansing, MI - Former Subpart 1
Eaton Co
8-Hr Ozone [m]   Lansing-East Lansing, MI - Former Subpart 1
Genesee Co
8-Hr Ozone [m]   Flint, MI - Former Subpart 1
1-Hr Ozone [m]   Flint, MI - Section 185A
Huron Co
8-Hr Ozone [m]   Huron Co, MI - Former Subpart 1
Ingham Co
8-Hr Ozone [m]   Lansing-East Lansing, MI - Former Subpart 1
Kalamazoo Co
8-Hr Ozone [m]   Kalamazoo-Battle Creek, MI - Former Subpart 1
Kent Co
8-Hr Ozone [m]   Grand Rapids, MI - Former Subpart 1
1-Hr Ozone [m]   Grand Rapids, MI - Moderate
Lapeer Co
8-Hr Ozone [m]   Flint, MI - Former Subpart 1
Lenawee Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
Livingston Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
Macomb Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
Mason Co
8-Hr Ozone [m]   Mason Co, MI - Former Subpart 1
Midland Co
1-Hr Ozone [m]   Saginaw-Bay City-Midland, MI - Incomplete Data
Monroe Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
Muskegon Co
8-Hr Ozone [m]   Muskegon, MI - Marginal
1-Hr Ozone [m]   Muskegon, MI - Moderate
Oakland Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
Ottawa Co
8-Hr Ozone [m]   Grand Rapids, MI - Former Subpart 1
1-Hr Ozone [m]   Grand Rapids, MI - Moderate
Saginaw Co
1-Hr Ozone [m]   Saginaw-Bay City-Midland, MI - Incomplete Data
St Clair Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
Van Buren Co
8-Hr Ozone [m]   Kalamazoo-Battle Creek, MI - Former Subpart 1
Washtenaw Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
Wayne Co
8-Hr Ozone [m]   Detroit-Ann Arbor, MI - Marginal
1-Hr Ozone [m]   Detroit-Ann Arbor, MI - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
MISSOURI
Clay Co
1-Hr Ozone [m]   Kansas City, MO-KS - Other
Franklin Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
Jackson Co
1-Hr Ozone [m]   Kansas City, MO-KS - Other
Jefferson Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
Platte Co
1-Hr Ozone [m]   Kansas City, MO-KS - Other
St Charles Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
St Louis
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
St Louis Co
8-Hr Ozone   St Louis, MO-IL - Moderate
1-Hr Ozone [m]   St Louis, MO-IL - Serious
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
NEVADA
Clark Co
8-Hr Ozone * Las Vegas, NV - Former Subpart 1
Washoe Co
1-Hr Ozone [n]   Reno, NV - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
NEW HAMPSHIRE
Cheshire Co
1-Hr Ozone [n]   Cheshire Co, NH - Incomplete Data
Hillsborough Co
8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
1-Hr Ozone [n] * Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
1-Hr Ozone [n] * Manchester, NH - Marginal
Merrimack Co
8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
1-Hr Ozone [n]   Manchester, NH - Marginal
Rockingham Co
8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
1-Hr Ozone [n] * Boston-Lawrence-Worcester (E. MA), MA-NH - Serious
1-Hr Ozone [n] * Manchester, NH - Marginal
1-Hr Ozone [n] * Portsmouth-Dover-Rochester, NH - Serious
Strafford Co
8-Hr Ozone * Boston-Manchester-Portsmouth(SE),NH - Moderate
1-Hr Ozone [n]   Portsmouth-Dover-Rochester, NH - Serious
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
NEW JERSEY
Atlantic Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Atlantic City, NJ - Moderate
Bergen Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Burlington Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Camden Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Cape May Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Atlantic City, NJ - Moderate
Cumberland Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Essex Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Gloucester Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Hudson Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Hunterdon Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Mercer Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Middlesex Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Monmouth Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Morris Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Ocean Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Passaic Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Salem Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Somerset Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Sussex Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Union Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Warren Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   Allentown-Bethlehem-Easton, PA-NJ - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
NEW MEXICO
Dona Ana Co
1-Hr Ozone [n] * Sunland Park, NM (New Area 1995) - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
NEW YORK
Albany Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
1-Hr Ozone [n]   Albany-Schenectady-Troy, NY - Marginal
Bronx Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Chautauqua Co
8-Hr Ozone   Jamestown, NY - Former Subpart 1
Dutchess Co
8-Hr Ozone   Poughkeepsie, NY - Moderate
1-Hr Ozone [n]   Poughkeepsie, NY - Moderate
Erie Co
8-Hr Ozone   Buffalo-Niagara Falls, NY - Former Subpart 1
1-Hr Ozone [n]   Buffalo-Niagara Falls, NY - Marginal
Essex Co
8-Hr Ozone * Essex Co (Whiteface Mtn), NY - Former Subpart 1
1-Hr Ozone [n] * Essex Co, NY - Marginal RT
Genesee Co
8-Hr Ozone   Rochester, NY - Former Subpart 1
Greene Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
1-Hr Ozone [n]   Albany-Schenectady-Troy, NY - Marginal
Jefferson Co
8-Hr Ozone   Jefferson Co, NY - Moderate
1-Hr Ozone [n]   Jefferson Co, NY - Marginal*
Kings Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Livingston Co
8-Hr Ozone   Rochester, NY - Former Subpart 1
Monroe Co
8-Hr Ozone   Rochester, NY - Former Subpart 1
Montgomery Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
1-Hr Ozone [n]   Albany-Schenectady-Troy, NY - Marginal
Nassau Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
New York Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Niagara Co
8-Hr Ozone   Buffalo-Niagara Falls, NY - Former Subpart 1
1-Hr Ozone [n]   Buffalo-Niagara Falls, NY - Marginal
Ontario Co
8-Hr Ozone   Rochester, NY - Former Subpart 1
Orange Co
8-Hr Ozone   Poughkeepsie, NY - Moderate
1-Hr Ozone [n] * New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
1-Hr Ozone [n] * Poughkeepsie, NY - Moderate
Orleans Co
8-Hr Ozone   Rochester, NY - Former Subpart 1
Putnam Co
8-Hr Ozone   Poughkeepsie, NY - Moderate
1-Hr Ozone [n]   Poughkeepsie, NY - Moderate
Queens Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Rensselaer Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
1-Hr Ozone [n]   Albany-Schenectady-Troy, NY - Marginal
Richmond Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Rockland Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Saratoga Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
1-Hr Ozone [n]   Albany-Schenectady-Troy, NY - Marginal
Schenectady Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
1-Hr Ozone [n]   Albany-Schenectady-Troy, NY - Marginal
Schoharie Co
8-Hr Ozone   Albany-Schenectady-Troy, NY - Former Subpart 1
Suffolk Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
Wayne Co
8-Hr Ozone   Rochester, NY - Former Subpart 1
Westchester Co
8-Hr Ozone   New York-N. New Jersey-Long Island,NY-NJ-CT - Moderate
1-Hr Ozone [n]   New York-N. New Jersey-Long Island, NY-NJ-CT - Severe-17
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
NORTH CAROLINA
Cabarrus Co
8-Hr Ozone   Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
Chatham Co
8-Hr Ozone [m] * Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
Davidson Co
1-Hr Ozone [m]   Greensboro-Winston Salem-High Point, NC - Moderate
Davie Co
1-Hr Ozone [m] * Greensboro-Winston Salem-High Point, NC - Moderate
Durham Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
1-Hr Ozone [m]   Raleigh-Durham, NC - Moderate
Edgecombe Co
8-Hr Ozone [m]   Rocky Mount, NC - Former Subpart 1
Forsyth Co
1-Hr Ozone [m]   Greensboro-Winston Salem-High Point, NC - Moderate
Franklin Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
Gaston Co
8-Hr Ozone   Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
1-Hr Ozone [m]   Charlotte-Gastonia, NC - Moderate
Granville Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
1-Hr Ozone [m] * Raleigh-Durham, NC - Moderate
Guilford Co
1-Hr Ozone [m]   Greensboro-Winston Salem-High Point, NC - Moderate
Haywood Co
8-Hr Ozone [m] * Haywood and Swain Cos (Great Smoky NP), NC - Former Subpart 1
Iredell Co
8-Hr Ozone * Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
Johnston Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
Lincoln Co
8-Hr Ozone   Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
Mecklenburg Co
8-Hr Ozone   Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
1-Hr Ozone [m]   Charlotte-Gastonia, NC - Moderate
Nash Co
8-Hr Ozone [m]   Rocky Mount, NC - Former Subpart 1
Orange Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
Person Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
Rowan Co
8-Hr Ozone   Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
Swain Co
8-Hr Ozone [m] * Haywood and Swain Cos (Great Smoky NP), NC - Former Subpart 1
Union Co
8-Hr Ozone   Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
Wake Co
8-Hr Ozone [m]   Raleigh-Durham-Chapel Hill, NC - Former Subpart 1
1-Hr Ozone [m]   Raleigh-Durham, NC - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
OHIO
Allen Co
8-Hr Ozone [m]   Lima, OH - Former Subpart 1
Ashtabula Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Belmont Co
8-Hr Ozone [m]   Wheeling, WV-OH - Former Subpart 1
Butler Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Clark Co
8-Hr Ozone [m]   Dayton-Springfield, OH - Former Subpart 1
1-Hr Ozone [m]   Dayton-Springfield, OH - Moderate
Clermont Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Clinton Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Clinton Co, OH - Section 185A
Columbiana Co
8-Hr Ozone [m]   Youngstown-Warren-Sharon, OH-PA - Former Subpart 1
1-Hr Ozone [m]   Columbiana Co, OH - Incomplete Data
Cuyahoga Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Delaware Co
8-Hr Ozone [m]   Columbus, OH - Former Subpart 1
1-Hr Ozone [m]   Columbus, OH - Marginal
Fairfield Co
8-Hr Ozone [m]   Columbus, OH - Former Subpart 1
Franklin Co
8-Hr Ozone [m]   Columbus, OH - Former Subpart 1
1-Hr Ozone [m]   Columbus, OH - Marginal
Geauga Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Greene Co
8-Hr Ozone [m]   Dayton-Springfield, OH - Former Subpart 1
1-Hr Ozone [m]   Dayton-Springfield, OH - Moderate
Hamilton Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Jefferson Co
8-Hr Ozone [m]   Steubenville-Weirton, OH-WV - Former Subpart 1
1-Hr Ozone [m]   Steubenville, OH - Section 185A
Knox Co
8-Hr Ozone [m]   Columbus, OH - Former Subpart 1
Lake Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Licking Co
8-Hr Ozone [m]   Columbus, OH - Former Subpart 1
1-Hr Ozone [m]   Columbus, OH - Marginal
Lorain Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Lucas Co
8-Hr Ozone [m]   Toledo, OH - Former Subpart 1
1-Hr Ozone [m]   Toledo, OH - Moderate
Madison Co
8-Hr Ozone [m]   Columbus, OH - Former Subpart 1
Mahoning Co
8-Hr Ozone [m]   Youngstown-Warren-Sharon, OH-PA - Former Subpart 1
1-Hr Ozone [m]   Youngstown-Warren-Sharon, OH portion - Marginal
Medina Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Miami Co
8-Hr Ozone [m]   Dayton-Springfield, OH - Former Subpart 1
1-Hr Ozone [m]   Dayton-Springfield, OH - Moderate
Montgomery Co
8-Hr Ozone [m]   Dayton-Springfield, OH - Former Subpart 1
1-Hr Ozone [m]   Dayton-Springfield, OH - Moderate
Portage Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Preble Co
1-Hr Ozone [m]   Preble Co, OH - Section 185A
Stark Co
8-Hr Ozone [m]   Canton-Massillon, OH - Former Subpart 1
1-Hr Ozone [m]   Canton, OH - Marginal
Summit Co
8-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
1-Hr Ozone [m]   Cleveland-Akron-Lorain, OH - Moderate
Trumbull Co
8-Hr Ozone [m]   Youngstown-Warren-Sharon, OH-PA - Former Subpart 1
1-Hr Ozone [m]   Youngstown-Warren-Sharon, OH portion - Marginal
Warren Co
8-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY-IN - Former Subpart 1
1-Hr Ozone [m]   Cincinnati-Hamilton, OH-KY - Moderate
Washington Co
8-Hr Ozone [m]   Parkersburg-Marietta, WV-OH - Former Subpart 1
Wood Co
8-Hr Ozone [m]   Toledo, OH - Former Subpart 1
1-Hr Ozone [m]   Toledo, OH - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
OREGON
Clackamas Co
1-Hr Ozone [m] * Portland-Vancouver AQMA, OR-WA - Marginal
Marion Co
1-Hr Ozone [n] * Salem, OR - Incomplete Data
Multnomah Co
1-Hr Ozone [m] * Portland-Vancouver AQMA, OR-WA - Marginal
Polk Co
1-Hr Ozone [n] * Salem, OR - Incomplete Data
Washington Co
1-Hr Ozone [m] * Portland-Vancouver AQMA, OR-WA - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
PENNSYLVANIA
Adams Co
8-Hr Ozone [m]   York, PA - Former Subpart 1
1-Hr Ozone [n]   York, PA - Marginal
Allegheny Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Armstrong Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Beaver Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Berks Co
8-Hr Ozone [m]   Reading, PA - Former Subpart 1
1-Hr Ozone [m]   Reading, PA - Moderate
Blair Co
8-Hr Ozone [m]   Altoona, PA - Former Subpart 1
1-Hr Ozone [n]   Altoona, PA - Marginal
Bucks Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Butler Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Cambria Co
8-Hr Ozone [m]   Johnstown, PA - Former Subpart 1
1-Hr Ozone [n]   Johnstown, PA - Marginal
Carbon Co
8-Hr Ozone [m]   Allentown-Bethlehem-Easton, PA - Former Subpart 1
1-Hr Ozone [n]   Allentown-Bethlehem-Easton, PA-NJ - Marginal
Centre Co
8-Hr Ozone [m]   State College, PA - Former Subpart 1
Chester Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Clearfield Co
8-Hr Ozone [m]   Clearfield and Indiana Cos, PA - Former Subpart 1
Columbia Co
1-Hr Ozone [n]   Scranton-Wilkes-Barre, PA - Marginal
Crawford Co
1-Hr Ozone [n]   Crawford Co, PA - Incomplete Data
Cumberland Co
8-Hr Ozone [m]   Harrisburg-Lebanon-Carlisle, PA - Former Subpart 1
1-Hr Ozone [n]   Harrisburg-Lebanon-Carlisle, PA - Marginal
Dauphin Co
8-Hr Ozone [m]   Harrisburg-Lebanon-Carlisle, PA - Former Subpart 1
1-Hr Ozone [n]   Harrisburg-Lebanon-Carlisle, PA - Marginal
Delaware Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Erie Co
8-Hr Ozone [m]   Erie, PA - Former Subpart 1
1-Hr Ozone [n]   Erie, PA - Marginal
Fayette Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Franklin Co
8-Hr Ozone [m]   Franklin Co, PA - Former Subpart 1
1-Hr Ozone [n]   Franklin Co, PA - Incomplete Data
Greene Co
8-Hr Ozone [m]   Greene Co, PA - Former Subpart 1
1-Hr Ozone [n]   Greene Co, PA - Incomplete Data
Indiana Co
8-Hr Ozone [m]   Clearfield and Indiana Cos, PA - Former Subpart 1
Juniata Co
1-Hr Ozone [n]   Juniata Co, PA - Incomplete Data
Lackawanna Co
8-Hr Ozone [m]   Scranton-Wilkes-Barre, PA - Former Subpart 1
1-Hr Ozone [n]   Scranton-Wilkes-Barre, PA - Marginal
Lancaster Co
8-Hr Ozone [m]   Lancaster, PA - Marginal
1-Hr Ozone [n]   Lancaster, PA - Marginal
Lawrence Co
1-Hr Ozone [n]   Lawrence Co, PA - Incomplete Data
Lebanon Co
8-Hr Ozone [m]   Harrisburg-Lebanon-Carlisle, PA - Former Subpart 1
1-Hr Ozone [n]   Harrisburg-Lebanon-Carlisle, PA - Marginal
Lehigh Co
8-Hr Ozone [m]   Allentown-Bethlehem-Easton, PA - Former Subpart 1
1-Hr Ozone [n]   Allentown-Bethlehem-Easton, PA-NJ - Marginal
Luzerne Co
8-Hr Ozone [m]   Scranton-Wilkes-Barre, PA - Former Subpart 1
1-Hr Ozone [n]   Scranton-Wilkes-Barre, PA - Marginal
Mercer Co
8-Hr Ozone [m]   Youngstown-Warren-Sharon, OH-PA - Former Subpart 1
1-Hr Ozone [n]   Youngstown-Warren-Sharon, PA portion - Marginal
Monroe Co
8-Hr Ozone [m]   Scranton-Wilkes-Barre, PA - Former Subpart 1
1-Hr Ozone [n]   Scranton-Wilkes-Barre, PA - Marginal
Montgomery Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Northampton Co
8-Hr Ozone [m]   Allentown-Bethlehem-Easton, PA - Former Subpart 1
1-Hr Ozone [n]   Allentown-Bethlehem-Easton, PA-NJ - Marginal
Northumberland Co
1-Hr Ozone [n]   Northumberland Co, PA - Incomplete Data
Perry Co
8-Hr Ozone [m]   Harrisburg-Lebanon-Carlisle, PA - Former Subpart 1
1-Hr Ozone [n]   Harrisburg-Lebanon-Carlisle, PA - Marginal
Philadelphia Co
8-Hr Ozone   Philadelphia-Wilmin-Atlantic Ci,PA-NJ-MD-DE - Moderate
1-Hr Ozone [n]   Philadelphia-Wilmington-Trenton, PA-NJ-DE-MD - Severe-15
Pike Co
1-Hr Ozone [n]   Pike Co, PA - Incomplete Data
Schuylkill Co
1-Hr Ozone [n]   Schuylkill Co, PA - Incomplete Data
Snyder Co
1-Hr Ozone [n]   Snyder Co, PA - Incomplete Data
Somerset Co
1-Hr Ozone [n]   Johnstown, PA - Marginal
Susquehanna Co
1-Hr Ozone [n]   Susquehanna Co, PA - Incomplete Data
Tioga Co
8-Hr Ozone [m]   Tioga Co, PA - Former Subpart 1
Warren Co
1-Hr Ozone [n]   Warren Co, PA - Incomplete Data
Washington Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Wayne Co
1-Hr Ozone [n]   Wayne Co, PA - Incomplete Data
Westmoreland Co
8-Hr Ozone   Pittsburgh-Beaver Valley, PA - Former Subpart 1
1-Hr Ozone [m]   Pittsburgh-Beaver Valley, PA - Moderate
Wyoming Co
8-Hr Ozone [m]   Scranton-Wilkes-Barre, PA - Former Subpart 1
1-Hr Ozone [n]   Scranton-Wilkes-Barre, PA - Marginal
York Co
8-Hr Ozone [m]   York, PA - Former Subpart 1
1-Hr Ozone [n]   York, PA - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
RHODE ISLAND
Bristol Co
8-Hr Ozone   Providence (All RI), RI - Moderate
1-Hr Ozone [n]   Providence (All RI), RI - Serious
Kent Co
8-Hr Ozone   Providence (All RI), RI - Moderate
1-Hr Ozone [n]   Providence (All RI), RI - Serious
Newport Co
8-Hr Ozone   Providence (All RI), RI - Moderate
1-Hr Ozone [n]   Providence (All RI), RI - Serious
Providence Co
8-Hr Ozone   Providence (All RI), RI - Moderate
1-Hr Ozone [n]   Providence (All RI), RI - Serious
Washington Co
8-Hr Ozone   Providence (All RI), RI - Moderate
1-Hr Ozone [n]   Providence (All RI), RI - Serious
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
SOUTH CAROLINA
Cherokee Co
1-Hr Ozone [m]   Cherokee Co, SC - Marginal
York Co
8-Hr Ozone * Charlotte-Gastonia-Rock Hill, NC-SC - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
TENNESSEE
Anderson Co
8-Hr Ozone [m]   Knoxville, TN - Former Subpart 1
Blount Co
8-Hr Ozone [m]   Knoxville, TN - Former Subpart 1
Cocke Co
8-Hr Ozone [m] * Knoxville, TN - Former Subpart 1
Davidson Co
1-Hr Ozone [m]   Nashville, TN - Moderate
Jefferson Co
8-Hr Ozone [m]   Knoxville, TN - Former Subpart 1
Knox Co
8-Hr Ozone [m]   Knoxville, TN - Former Subpart 1
1-Hr Ozone [m]   Knoxville, TN - Marginal
Loudon Co
8-Hr Ozone [m]   Knoxville, TN - Former Subpart 1
Montgomery Co
8-Hr Ozone [m]   Clarksville-Hopkinsville, TN-KY - Former Subpart 1
Rutherford Co
1-Hr Ozone [m]   Nashville, TN - Moderate
Sevier Co
8-Hr Ozone [m]   Knoxville, TN - Former Subpart 1
Shelby Co
8-Hr Ozone [m]   Memphis, TN-AR - Moderate
1-Hr Ozone [m]   Memphis, TN - Marginal*
Sumner Co
1-Hr Ozone [m]   Nashville, TN - Moderate
Williamson Co
1-Hr Ozone [m]   Nashville, TN - Moderate
Wilson Co
1-Hr Ozone [m]   Nashville, TN - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
TEXAS
Brazoria Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Chambers Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Collin Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
1-Hr Ozone [n]   Dallas-Fort Worth, TX - Serious
Dallas Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
1-Hr Ozone [n]   Dallas-Fort Worth, TX - Serious
Denton Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
1-Hr Ozone [n]   Dallas-Fort Worth, TX - Serious
El Paso Co
1-Hr Ozone [n]   El Paso, TX - Serious
Ellis Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
Fort Bend Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Galveston Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Hardin Co
8-Hr Ozone [m]   Beaumont-Port Arthur, TX - Moderate
1-Hr Ozone [n]   Beaumont-Port Arthur, TX - Serious
Harris Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Jefferson Co
8-Hr Ozone [m]   Beaumont-Port Arthur, TX - Moderate
1-Hr Ozone [n]   Beaumont-Port Arthur, TX - Serious
Johnson Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
Kaufman Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
Liberty Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Montgomery Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
Orange Co
8-Hr Ozone [m]   Beaumont-Port Arthur, TX - Moderate
1-Hr Ozone [n]   Beaumont-Port Arthur, TX - Serious
Parker Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
Rockwall Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
Tarrant Co
8-Hr Ozone   Dallas-Fort Worth, TX - Serious
1-Hr Ozone [n]   Dallas-Fort Worth, TX - Serious
Victoria Co
1-Hr Ozone [m]   Victoria, TX - Incomplete Data
Waller Co
8-Hr Ozone   Houston-Galveston-Brazoria, TX - Severe 15
1-Hr Ozone [n]   Houston-Galveston-Brazoria, TX - Severe-17
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
UTAH
Davis Co
1-Hr Ozone [m]   Salt Lake City, UT - Moderate
Salt Lake Co
1-Hr Ozone [m]   Salt Lake City, UT - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
VIRGINIA
Alexandria
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Arlington Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Charles City Co
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m] * Richmond, VA - Moderate
Chesapeake
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Chesterfield Co
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m]   Richmond, VA - Moderate
Colonial Heights
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m]   Richmond, VA - Moderate
Fairfax
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Fairfax Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Falls Church
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Fredericksburg
8-Hr Ozone [m]   Fredericksburg, VA - Moderate
Gloucester Co
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
Hampton
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Hanover Co
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m]   Richmond, VA - Moderate
Henrico Co
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m]   Richmond, VA - Moderate
Hopewell
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m]   Richmond, VA - Moderate
Isle Of Wight Co
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
James City Co
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Loudoun Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Madison Co
8-Hr Ozone [m] * Madison and Page Cos (Shenandoah NP), VA - Former Subpart 1
Manassas
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Manassas Park
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Newport News
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Norfolk
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Page Co
8-Hr Ozone [m] * Madison and Page Cos (Shenandoah NP), VA - Former Subpart 1
Petersburg
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
Poquoson
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Portsmouth
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Prince George Co
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
Prince William Co
8-Hr Ozone   Washington, DC-MD-VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Richmond
8-Hr Ozone [m]   Richmond-Petersburg, VA - Marginal
1-Hr Ozone [m]   Richmond, VA - Moderate
Smyth Co
1-Hr Ozone [n] * Smyth Co, VA (White Top Mtn) - Marginal RT
Spotsylvania Co
8-Hr Ozone [m]   Fredericksburg, VA - Moderate
Stafford Co
8-Hr Ozone [m]   Fredericksburg, VA - Moderate
1-Hr Ozone [n]   Washington, DC-MD-VA - Severe-15
Suffolk
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Virginia Beach
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
Williamsburg
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
York Co
8-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (HR),VA - Marginal
1-Hr Ozone [m]   Norfolk-Virginia Beach-Newport News (Hampton Roads),VA - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
WASHINGTON
Clark Co
1-Hr Ozone [m] * Portland-Vancouver AQMA, OR-WA - Marginal
King Co
1-Hr Ozone [m] * Seattle-Tacoma, WA - Marginal
Pierce Co
1-Hr Ozone [m]   Seattle-Tacoma, WA - Marginal
Snohomish Co
1-Hr Ozone [m] * Seattle-Tacoma, WA - Marginal
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
WEST VIRGINIA
Brooke Co
8-Hr Ozone [m]   Steubenville-Weirton, OH-WV - Former Subpart 1
Cabell Co
8-Hr Ozone [m]   Huntington-Ashland, WV-KY - Former Subpart 1
1-Hr Ozone [m]   Huntington-Ashland, WV-KY - Moderate*
Greenbrier Co
1-Hr Ozone [m]   Greenbrier Co, WV - Marginal
Hancock Co
8-Hr Ozone [m]   Steubenville-Weirton, OH-WV - Former Subpart 1
Kanawha Co
8-Hr Ozone [m]   Charleston, WV - Former Subpart 1
1-Hr Ozone [m]   Charleston, WV - Moderate
Marshall Co
8-Hr Ozone [m]   Wheeling, WV-OH - Former Subpart 1
Ohio Co
8-Hr Ozone [m]   Wheeling, WV-OH - Former Subpart 1
Putnam Co
8-Hr Ozone [m]   Charleston, WV - Former Subpart 1
1-Hr Ozone [m]   Charleston, WV - Moderate
Wayne Co
8-Hr Ozone [m]   Huntington-Ashland, WV-KY - Former Subpart 1
1-Hr Ozone [m]   Huntington-Ashland, WV-KY - Moderate*
Wood Co
8-Hr Ozone [m]   Parkersburg-Marietta, WV-OH - Former Subpart 1
1-Hr Ozone [m]   Parkersburg, WV - Moderate
State, County, Pollutant, * Part County in Area, Area Name, Category/Classification
WISCONSIN
Door Co
8-Hr Ozone [m]   Door Co, WI - Former Subpart 1
1-Hr Ozone [m]   Door Co, WI - Marginal RT
Kenosha Co
8-Hr Ozone   Milwaukee-Racine, WI - Moderate
1-Hr Ozone [n]   Milwaukee-Racine, WI - Severe-17
Kewaunee Co
8-Hr Ozone [m]   Kewaunee Co, WI - Former Subpart 1
1-Hr Ozone [m]   Kewaunee Co, WI - Moderate
Manitowoc Co
8-Hr Ozone [m]   Manitowoc Co, WI - Former Subpart 1
1-Hr Ozone [m]   Manitowoc Co, WI - Moderate*
Milwaukee Co
8-Hr Ozone   Milwaukee-Racine, WI - Moderate
1-Hr Ozone [n]   Milwaukee-Racine, WI - Severe-17
Ozaukee Co
8-Hr Ozone   Milwaukee-Racine, WI - Moderate
1-Hr Ozone [n]   Milwaukee-Racine, WI - Severe-17
Racine Co
8-Hr Ozone   Milwaukee-Racine, WI - Moderate
1-Hr Ozone [n]   Milwaukee-Racine, WI - Severe-17
Sheboygan Co
8-Hr Ozone   Sheboygan, WI - Moderate
1-Hr Ozone [m]   Sheboygan, WI - Moderate
Walworth Co
1-Hr Ozone [m]   Walworth Co, WI - Marginal
Washington Co
8-Hr Ozone   Milwaukee-Racine, WI - Moderate
1-Hr Ozone [n]   Milwaukee-Racine, WI - Severe-17
Waukesha Co
8-Hr Ozone   Milwaukee-Racine, WI - Moderate
1-Hr Ozone [n]   Milwaukee-Racine, WI - Severe-17


Notes:
n = area has whole or part county or counties in a previous 1-hr Ozone nonattainment area (as of June 15, 2005) no longer subject to the 1-hour standard
m = area has whole or part county or counties in a previous 1-hr Ozone maintenance area (as of June 15, 2005) no longer subject to the 1-hour standard
* = area has whole or part county or counties in a CO, PM-10, or PM-2.5 nonattainment or maintenance area or previous 1-hr Ozone nonattainment or maintenance area (as of June 15, 2005)

Details about the designations and classifications of previous 1-hour ozone nonattainment and maintenance areas can be found here.

Go Top

Local Navigation

Jump to main content.